Calculate circumference and area of circles and composite figures, and solve area equations for triangles with rational dimensions.

Calculate volume and surface area of rectangular and triangular prisms with rational number dimensions, including writing equations for missing dimensions.

Fluently add and subtract positive and negative rational numbers in fraction, decimal, and mixed number forms, and use models to understand these operations.

Write and solve equations using angle relationships, analyze the effect of dimension changes, and apply congruent triangle relationships to solve problems.